src/generic/splash.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/splash.cpp
   3 // Purpose:     wxSplashScreen class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     28/6/2000
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_SPLASH
  20
  21 #ifdef __WXGTK20__
  22     #include <gtk/gtk.h>
  23 #endif
  24
  25 #include "wx/splash.h"
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/dcmemory.h"
  29     #include "wx/dcclient.h"
  30 #endif
  31
  32 /*
  33  * wxSplashScreen
  34  */
  35
  36 #define wxSPLASH_TIMER_ID 9999
  37
  38 IMPLEMENT_DYNAMIC_CLASS(wxSplashScreen, wxFrame)
  39
  40 BEGIN_EVENT_TABLE(wxSplashScreen, wxFrame)
  41     EVT_TIMER(wxSPLASH_TIMER_ID, wxSplashScreen::OnNotify)
  42     EVT_CLOSE(wxSplashScreen::OnCloseWindow)
  43 END_EVENT_TABLE()
  44
  45 /* Note that unless we pass a non-default size to the frame, SetClientSize
  46  * won't work properly under Windows, and the splash screen frame is sized
  47  * slightly too small.
  48  */
  49
  50 wxSplashScreen::wxSplashScreen(const wxBitmap& bitmap, long splashStyle, int milliseconds, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
  51     wxFrame(parent, id, wxEmptyString, wxPoint(0,0), wxSize(100, 100), style)
  52 {
  53     // At least for GTK+ 2.0, this hint is not available.
  54 #if defined(__WXGTK20__)
  55 #if GTK_CHECK_VERSION(2,2,0)
  56     gtk_window_set_type_hint(GTK_WINDOW(m_widget),
  57                              GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
  58 #endif
  59 #endif
  60
  61     m_window = NULL;
  62     m_splashStyle = splashStyle;
  63     m_milliseconds = milliseconds;
  64
  65     m_window = new wxSplashScreenWindow(bitmap, this, wxID_ANY, pos, size, wxNO_BORDER);
  66
  67     SetClientSize(bitmap.GetWidth(), bitmap.GetHeight());
  68
  69     if (m_splashStyle & wxSPLASH_CENTRE_ON_PARENT)
  70         CentreOnParent();
  71     else if (m_splashStyle & wxSPLASH_CENTRE_ON_SCREEN)
  72         CentreOnScreen();
  73
  74     if (m_splashStyle & wxSPLASH_TIMEOUT)
  75     {
  76         m_timer.SetOwner(this, wxSPLASH_TIMER_ID);
  77         m_timer.Start(milliseconds, true);
  78     }
  79
  80     Show(true);
  81     m_window->SetFocus();
  82 #if defined( __WXMSW__ ) || defined(__WXMAC__)
  83     Update(); // Without this, you see a blank screen for an instant
  84 #else
  85     wxYieldIfNeeded(); // Should eliminate this
  86 #endif
  87 }
  88
  89 wxSplashScreen::~wxSplashScreen()
  90 {
  91     m_timer.Stop();
  92 }
  93
  94 void wxSplashScreen::OnNotify(wxTimerEvent& WXUNUSED(event))
  95 {
  96     Close(true);
  97 }
  98
  99 void wxSplashScreen::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
 100 {
 101     m_timer.Stop();
 102     this->Destroy();
 103 }
 104
 105 /*
 106  * wxSplashScreenWindow
 107  */
 108
 109 BEGIN_EVENT_TABLE(wxSplashScreenWindow, wxWindow)
 110 #ifdef __WXGTK__
 111     EVT_PAINT(wxSplashScreenWindow::OnPaint)
 112 #endif
 113     EVT_ERASE_BACKGROUND(wxSplashScreenWindow::OnEraseBackground)
 114     EVT_CHAR(wxSplashScreenWindow::OnChar)
 115     EVT_MOUSE_EVENTS(wxSplashScreenWindow::OnMouseEvent)
 116 END_EVENT_TABLE()
 117
 118 wxSplashScreenWindow::wxSplashScreenWindow(const wxBitmap& bitmap, wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
 119     wxWindow(parent, id, pos, size, style)
 120 {
 121     m_bitmap = bitmap;
 122
 123 #if !defined(__WXGTK__) && wxUSE_PALETTE
 124     bool hiColour = (wxDisplayDepth() >= 16) ;
 125
 126     if (bitmap.GetPalette() && !hiColour)
 127     {
 128         SetPalette(* bitmap.GetPalette());
 129     }
 130 #endif
 131
 132 }
 133
 134 // VZ: why don't we do it under wxGTK?
 135 #if !defined(__WXGTK__) && wxUSE_PALETTE
 136     #define USE_PALETTE_IN_SPLASH
 137 #endif
 138
 139 static void wxDrawSplashBitmap(wxDC& dc, const wxBitmap& bitmap, int WXUNUSED(x), int WXUNUSED(y))
 140 {
 141     wxMemoryDC dcMem;
 142
 143 #ifdef USE_PALETTE_IN_SPLASH
 144     bool hiColour = (wxDisplayDepth() >= 16) ;
 145
 146     if (bitmap.GetPalette() && !hiColour)
 147     {
 148         dcMem.SetPalette(* bitmap.GetPalette());
 149     }
 150 #endif // USE_PALETTE_IN_SPLASH
 151
 152     dcMem.SelectObjectAsSource(bitmap);
 153     dc.Blit(0, 0, bitmap.GetWidth(), bitmap.GetHeight(), & dcMem, 0, 0);
 154     dcMem.SelectObject(wxNullBitmap);
 155
 156 #ifdef USE_PALETTE_IN_SPLASH
 157     if (bitmap.GetPalette() && !hiColour)
 158     {
 159         dcMem.SetPalette(wxNullPalette);
 160     }
 161 #endif // USE_PALETTE_IN_SPLASH
 162 }
 163
 164 void wxSplashScreenWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
 165 {
 166     wxPaintDC dc(this);
 167     if (m_bitmap.Ok())
 168         wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 169 }
 170
 171 void wxSplashScreenWindow::OnEraseBackground(wxEraseEvent& event)
 172 {
 173     if (event.GetDC())
 174     {
 175         if (m_bitmap.Ok())
 176         {
 177             wxDrawSplashBitmap(* event.GetDC(), m_bitmap, 0, 0);
 178         }
 179     }
 180     else
 181     {
 182         wxClientDC dc(this);
 183         if (m_bitmap.Ok())
 184         {
 185             wxDrawSplashBitmap(dc, m_bitmap, 0, 0);
 186         }
 187     }
 188 }
 189
 190 void wxSplashScreenWindow::OnMouseEvent(wxMouseEvent& event)
 191 {
 192     if (event.LeftDown() || event.RightDown())
 193         GetParent()->Close(true);
 194 }
 195
 196 void wxSplashScreenWindow::OnChar(wxKeyEvent& WXUNUSED(event))
 197 {
 198     GetParent()->Close(true);
 199 }
 200
 201 #endif // wxUSE_SPLASH